Writing instrument



FIG. 1 is a front perspective view of the writing instrument.

FIG. 2 is a front view of the writing instrument.

FIG. 3 is a rear view of the writing instrument.

FIG. 4 is a right side view of the writing instrument.

FIG. 5 is a left side view of the writing instrument.

FIG. 6 is a top view of the writing instrument; and,

FIG. 7 is a bottom view of the writing instrument. 

The ornamental design for a writing instrument, as shown and described. 